Lubricator.



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a SHEETS-SHEET 1.

PATENTBD AUG. 21, 1906.

G. W. MANZEL. LUBRICATOR. APPLICATION FILED N0v.1, 1905.

3 BHBETS*SHEBT 2.

N0. 829,166. PATENTBD AUG. 2l, 1906.

C. W. MANZBL. LUBRIGATOR.

APPLICATION FILED NOV. l, 1905.

3 SHEETS-SHEET 3,

UNITED STATES PATENT OFFICE.

CHARLES W. MANZEL, OF BUFFALO, NEW YORK.

i LUBRICATOR.

Specification ofLetters Patent.

Patented Aug. 21,v 1906.

Application filed November 1, 1905. Serial No. 285.408. y

To a/ZZ whom it may concern.-

Be it known that I, CHARLES W. MANzEL, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented a new and useful Improvement in Lubricators, of which the following is a specification.

This invention relates to a lubricator of the force-feed typeI having a plurality of pumps for delivering the lubricant to different parts of an engine or machine, the same being intended more especially for use on locomotives.

The principal object of m invention is the provision of a lubricator o the class which combines the advantages of simplicity, compactness, and comparatively low cost.

.Further objects are to provide the lubricator with simple and convenient means for regulating the quantity of oil supplied by the same an for observing the feed when de-A sired.

In the accompanying drawings, consisting of three sheets, Figure 1 is a front elevation of the lubricator. Fig. 2 is a side elevation thereof. Fig. 3 is a vertical central section of the same. Fig. 4 is a vertical section of the sight-chamber, taken through one of the oil-return passages. Fig. 5 is a horizontal section in line 5 5, Fig. 3.

Similar letters of reference indicate correspondin parts throu hout the several views.

A indicates the bo y or reservoir of the lubricator, which is preferably rectangular, as shown, and. provided with a removable front plate A. In its top the reservoir has a fill ing-tube b, closed by a screw-plug b," the tu e preferably carryin a tubular strainer b2 for intercepting any Foreign substance in the oil as shown in Fig. 3.

In the lower portion of the reservoir are arranged one or more horizontal force-pum. s (l, which take the oil from the same and eliver it to the parts to be lubricated, the lubricator shown in the drawin s having seven independent pumps adapte to supply the steam-cylinders, air-cylinders, an other parts of a locomotive. In the preferred construction shown in the drawings the plun ers C of the several pumps are secured to an actuated b a common cross-.head D arran ed within the reservoir and having forwar lyextending arms D', Figs. 3 and 5, provided with trunnions d. This cross-head is reciprocated by a depending bifurcated arm or frame E, secured at its upper end to a transverse rock-shaft E and havin forked lower ends which embrace the tru nions d. The rock-shaft E may be actuated by any suitable means, the preferred device bein an air-motor E ofV any approved type, w 'ch transmits the movements of its pistons to the rock-shaft b an arm E3, secured to the outer end of the s aft. vided in its upper side with an inlet-port c, a suitableI strainer c being preferably applied over the several inlet-ports, as shown in Figs. 3 and 5.

In the discharge-passage of each pump C are a pair of spring-pressed check-valvesff. The second c eck-valve f is preferably arranged Within a removable case -or cage F, screwed into an opening in the front plate A of the lubricator, as shown in Fig. 3. The discharge-ports f of the several cases F communicate with descending delivery-passages f, ,formed in a downward extension of the front plate A and terminating, respectively, in nozzles j", to which the usual oil-pipes are connected. The valve-cage F is provided in y opposite sides of its reduced front endwith passages through which the oil enters the cage. T e several descending passages f3 communicate with a common horizontal valve-case G containing a rotary valve-plug G for controlling the flow of the oil to the lubricated parts.

H indicates a sight-chamber arran ed at the top of the lubricator on its front si e and preferabl formed by an enlargement at the.

up er en of the front plate A', as best shown in igs. 2 and 3. The barrels of the several pumps C are connected with-this sight-chamer by individual conduits or passages i, eX- tending from the space' between the two check-valves of each barrel-to the upper ortion of the sight-chambe'rfj' These con uits are preferably arran ed onft-h'e' inner side of front plate A', and t eir upper ends communicate with drip-nozzles "i, which extend through the top of the sight-chamber and from which the oil falls in drops. This chamber is provided in its front wall with a trans parent pane h, through which the oil-feed may be observed.

j, Figs. 3 and 4, represents passages whicl connect the bottom offthe sight-chamber with the interior of the reservoir A and through which the oil discharged into said chamber is allowed to return to the reservoir.

Each pump-barrel is prol IOO K indicates a stop cock or valve arranged in the several ascending passages 'i for establisliing or cutting off communication between the several pumps and the sight-chamber H; As shown in Fig. 5, the rota :plug of this valve has a port for each of sai passages.

A regulatin piston or follower L is preferably combine with each pump barrel or cylinder for causing itto delivera predetermined uantity of oil to the part supplied by same. ilu the construction shown in the drawings each regular piston is fitted in an enlargement or chamber L', arranged on the upper side of the 'corresponding barrel and communicating therewith beyond the inlet c. The outward movement of the iston is limited by a stop or screw-threade rod M, passing through a threaded opening in the top of the oil-reservoir and locked in osition by a jamnut m. The spring of the rst check-valvef is so sti` that its resistance is greater than the weight or resistance of the regulatingpiston L.

Upon the forward stroke of a pump-plunger the corresponding regulating-piston L is raised by the pressure in the barrel until it strikes its stop M, the oil in the barrel entering the portion of the enlargement L left vacant by the displaced piston. When the regulating-piston is thus arrested, the continued pressure in the pump-barrel overcomes the spring of the check-valvef, o'pening the latter and deliveringr a reater or less charge-of oil through the disc arge-passage of the barrel, according to the extent of travel of the regulating-piston permitted by its stop. This piston has auniform redetermined stroke, and the capacity of t e pumpbarrelis augmented more or less by its enlargement, according as the re ulating-piston is allowed to recede more or ess by its adjustable stop. It follows that by increasing the capacity of the barrel a smaller quantity of oil will be pumped past its check-valvesff. Thus if it is desired to supply the maximum quantity of oil, the stop M is adjusted to its lowest position, while if a smaller quantity is to be supplied the stop is raised to a greater or less extent.

When the lubricator is in its normal condition for supplying oil to the desired parts, the lower hand-valve G is open and the upper hand-valve K is closed, so as to cut 0H the sight-chamber H from the pump-barrels. The oil is noW forced by the pumps ast the check-valves ff and through the eliverypassagesf.

When it is desired to observe and regulate the feed of the pumps, the upper valve K is opened, as shown in Fig. 3. The lubricant will beforced past the first check-valvefofeach pump and up throu h the conduitsfi and the drip-nozzles i into t e sight-chamber, whence it returns into the reservoir through the ass ages as before described. The spring o the second check-valvef of each pum is made stiff enough to cause the oil under t ese conditions to ascend through the passages 'i into the sight-chamber and prevent the oil columns in said passages roI'n o ening said valves and escaping into the sa es f 3.

he oil-reservoir is provided in one of its Walls with a gage-glass N, seated in a rabbeted plate N which is screwed or otherwise removably securedto the side of the reservoir. This glass forms the outer wall of a vertical chamber N, which normally communicates with the interior of the oil-reservoir by an opening or passage n, arranged near the lower end of said chamber, the upper portion of the chamber' having the usual vent n. In the event of the glass being broken the opening or passa e n is closed by a suitable lug rnto retain t e oil in the reservoir until) the broken glass can be replaced by a new one. When not in use, this plug may be screwed into an opening'into the lower end of the plate N.

By my improved construction a sightfeed, as well as a regulatin device for the oildelivery, is combined wit each pump, ermittin the several, pumps to be regulate inde en ently in accordancewith the quantity of ubricant to be supplied to each part. At the same'time the construction is exceedingly simple and com act.

do not wish to c aim in this application the construction of the re ulatin device L M, as the same forms the su ject o another a plication filed by me August 24, 1905, Serial I claim as my invention- 1. The combination of an oil-reservon, a pum su plied therefrom, a spring-pressed chec -va ve arranged in the delivery-passage of the pum a sight-chamber arrange above the level o the pump, a conduit leading from the portion of said delivery-passage on the inner side of said valve to the si ht-chamber, the spring of said check-valveghaving sufficient resistance to support the column of oil in said conduit, and a cut-ofi'` valve arranged in said conduit, substantially as set forth.

2. The combination of an oil-reservoir, a pump supplied therefrom, a pair of checkvalves arranged in the delivery-passage of.

the lubricator one be ond the other, a sightchamber, and a con uit connected with the portion of the delivery-passage between said elivery-pascheck-valves and leading to the top of the v sight-chamber substantially as set forth.

3. The com ination of an oil-reservoir, a pump supplied therefrom, a pair of checkvalves arranged in the delivery-passage of the lubricator one beyond the other, a sight-chamber, a conduit connected with the portion of the deliver -passage between said checkvalves and leading to the top of the sightchamber, and a return-conduit connecting the bottom of the sight-chamber with the reservoir, substantially as set forth.

4. The combination of an oil-reservoir, a pump arranged in the lower portion of the reservoir and supplied therefrom, springpressed check-valves arranged in the deliveri-passage of the pump one beyond the ot er, a sight-chamber arranged near the top of the reservoir and provided with a dripnozzle, an ascendin conduit connected With the portion of the delivery-passa e between said valves and leadin to the rip-nozzle, the spring of the secon or outer one of said valves having sufficient resistance to support the column ofil insaid conduit, a cut-off valve arranged in said conduit, and a second conduit connecting the bottom of the sightchamber with the reservoir, substantially as set'forth.

5. The combination of an oil-reservoir, a plurality of pumps arranged in the lower portion of the reservoir and supplied therefrom, a sight-chamber arranged near the top of the reservoir and provided with a plurality of drip-nozzles, independent conduits leading from the delivery-passa es of the iespective pumps to said drip-nozz es, a return-conduit connecting the sight-chamber with the reservoir, and a cut-oil valve common`to all of Said lirst-mentioned conduits, substantially as set forth.

6. The combination of an oil-reservoir having a removable front plate, a plurality of pum s arranged in the reservolr and supplie therefrom, a sight-chamber arranged above the level of the pumps, individual conduits leading from the respective pumps to the sight-chamber, and a cut-off valve controlling said conduits; the sight-chamber, said conduits and said valve being carried by the removable front plate, substantially as set forth.

'7. The combination of an oil-reservoir provided in the outer side of one of its Walls with an upright chamber, and a removable gageglass forming the outer Wall of said chamber, the lower portion of the chamber communieating normally with the reservoir by a pas; sage adaplted to be closed by a plug in the event of t e age-glass being broken, substantially as set orth.

CHARLES W. MANZEL. Witnesses:

C. F. GEYER, E. M. GRAHAM.

tness my hand this 30th day of October, 

